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4 layers65 × 75 mmMicroduck Power Regen R22, the printed circuit board in 3D

Microduck Power Regen R22

ldcyes/OpenDuck

已完成可编辑原理图、真实四层 PCB 和本地库。阶梯板面积 4510 mm²,比原 65×60 + 32×30 mm 两板总面积 4860 mm² 少 350 mm²(7.20%)。原 TDK 模块本体、四个安装孔和原 TDK 器件位置保留,回生电容采用原料号卧装,J1 因实际拔插通道冲突改为同系列 BM08 顶插。当前为工程候选,未制造,未完成热、回生瞬态、低电量或行走验收。

Size
65 × 75 mm
Copper layers
4
Thickness
1.6 mm
Parts
84
Nets
47
Pads
292
Tracks, vias
3,486, 185
Pours
4
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
13 Sep 2026
Updated
28 Sep 2026

Overview

Microduck Power Regen R22 is an open-source printed circuit board by ldcyes, from the ldcyes/OpenDuck repository on GitHub. It is a 4-layer board of 65 × 75 mm with 84 parts on 47 nets, routed with 3,486 tracks and 185 vias.

It is built around the INA226AIDGSR, UCC27511DBVR(UMW) and REF3312AIDBZR, with the TLV76050DBZR-MS, INA300AIDGSR and LM74800QDRRRQ1 among its other parts. Its parts include 31 capacitors, 21 resistors, 9 ICs, 6 connectors and 5 transistors.

Main components

12

README

hardware/r22-candidate/power_regen/README.md

R22 TDK Power + Regen 合板

已完成可编辑原理图、真实四层 PCB 和本地库。阶梯板面积 4510 mm²,比原 65×60 + 32×30 mm 两板总面积 4860 mm² 少 350 mm²(7.20%)。原 TDK 模块本体、四个安装孔和原 TDK 器件位置保留,回生电容采用原料号卧装,J1 因实际拔插通道冲突改为同系列 BM08 顶插。当前为工程候选,未制造,未完成热、回生瞬态、低电量或行走验收。

打开 Microduck_Power_Regen_R22.kicad_pro;根原理图包含 power.kicad_sch 与 regen.kicad_sch。fp-lib-table、sym-lib-table 和本地 footprints/、符号库随项目交付,不依赖源目录可写。原生 PCB 是本次权威结果;中间生成/路由脚本仅保留过程追踪,不能只运行早期 build.py 覆盖最终板。

内容文件
三页可编辑原理图及浏览版Microduck_Power_Regen_R22.kicad_sch、Schematic_R22.pdf、schematic_svg/
实际板图及叠层Microduck_Power_Regen_R22.kicad_pcb、同名 .kicad_pro / .kicad_dru
四层铜 PDF / 前背 SVGPCB_Copper_R22.pdf、PCB_Front.svg、PCB_Back.svg
正背装配图Assembly_Front.svg、Assembly_Back.svg、相应 PNG
BOM、源针网及删改映射BOM_R22.csv、Pin_to_Net_R22.csv、merge_mapping.json、equivalence_audit.json
安装/焊线/插头/孔位接口Board_Interface_R22_Power_Regen.json
制造、保护、承流和验收边界Validation_Report.md、Fabrication_Local_Clearances.json、Current_Thermal_Screen.json、DC_Copper_Regen_Loop_Final.json
验证drc.json、erc.json、verification/enabled/、final_sha256.json

只在 SERVO_BUS 和 GND 上合网。保留两域 +3V3、回生 5V、内部 SHUNT / INA / 控制网络的独立性;不能据同名直接合并。主电源 INA226 地址 0x41、回生 INA226 地址 0x42、LM74800、INA300、比较器迟滞、驱动和默认关闭保持源功能。唯一 MPN 替代是有安装实形证据的 J1:SM08B → BM08B,SHR-08V-S / SSH-003T-P0.2-H 及八针网络不变。所有其他 MPN 和值均与现行 R13 两源板逐项核对。

铜图前后层统一使用原生 XY 俯视坐标便于对照;Assembly_Back.svg/PNG 为翻到背面后的镜像装配视图。装配精确编号、坐标和方向以 BOM 与针网表为准。

Parts

84
QtyValueFootprintReferences
17100nFCapacitor_SMD:C_0603_1608MetricC4, C5, C6, C7, C8, C10, C11, C12, C15, C102, C103, C104, C105, C107, C108, C109 +1
610uF 50VCapacitor_SMD:C_1210_3225MetricC13, C14, C16, C17, C18, C19
4100kResistor_SMD:R_0603_1608MetricR7, R8, R106, R107
410R 0.1%Resistor_SMD:R_0603_1608MetricR10, R11, R108, R109
4M2 NPTHMountingHole:MountingHole_2.2mm_M2H1, H2, H3, H4
322uF 25V X7RCapacitor_SMD:C_1210_3225MetricC110, C111, C112
3680uF 25V 20%Capacitor_THT:CP_Radial_D10.0mm_P5.00mmC1, C2, C3
260V 2.2mOhm @10VMicroduck_Power_R8:CSD18540Q5B_DNKQ1, Q2
1+3V3Microduck_Brake_R8:WireSignal_0p5mmP102
11.10k 0.1%Resistor_SMD:R_0603_1608MetricR9
11.25V PRECISION REFPackage_TO_SOT_SMD:SOT-23U102
11.2kResistor_SMD:R_0603_1608MetricR6
110.0k 0.1%Resistor_SMD:R_0603_1608MetricR102
110kResistor_SMD:R_0603_1608MetricR110
117.4k 0.1%Resistor_SMD:R_0603_1608MetricR2
11kResistor_SMD:R_0603_1608MetricR3
11k 0.1%Resistor_SMD:R_0603_1608MetricR5
11uF 10VCapacitor_SMD:C_0603_1608MetricC106
12.20M 0.1%Resistor_SMD:R_0603_1608MetricR103
12.2RResistor_SMD:R_0603_1608MetricR105
12.45k 0.1%Resistor_SMD:R_0603_1608MetricR1
12200uF 16V LOW ESRMicroduck_R22:CP_EEUFR1C222_Horizontal_ClipC101
12mOhm 1% 3W KELVINMicroduck_Power_R8:WSL2726_KelvinRS1
12mOhm 1% 3W KELVINMicroduck_Brake_R8:WSL2726_KelvinRS101
14.7RResistor_SMD:R_0603_1608MetricR104
14S SWITCHED +Microduck_Power_R8:WirePad_2p4mm_6mmW1
160V BRAKE MOSFETMicroduck_Brake_R8:CSD18540Q5B_DNKQ101
18.38k 0.1%Resistor_SMD:R_0603_1608MetricR4
180.6k 0.1%Resistor_SMD:R_0603_1608MetricR101
1BRAKE CURRENT INA226 0x42Microduck_R22:TI_DGS0010A_1p45x0p30U105
1BRAKE_ACTIVE_NMicroduck_Brake_R8:WireSignal_0p5mmP105
1BUS POWERED 5V LDOPackage_TO_SOT_SMD:SOT-23U101
1CONTROL 3.3V / RUN DEFAULT OFFConnector_JST:JST_SH_BM08B-SRSS-TB_1x08-1MP_P1.00mm_VerticalJ1
1GATE SOURCE SINK DRIVERPackage_TO_SOT_SMD:SOT-23-6U104
1GNDMicroduck_Brake_R8:WireSignal_0p5mmP101
1GND INPUTMicroduck_Power_R8:WirePad_2p4mm_6mmW2
1GND OUTPUTMicroduck_Power_R8:WirePad_2p4mm_6mmW4
1HARDWARE OC LATCHMicroduck_R22:TI_DGS0010A_1p45x0p30U4
1I2C_SCLMicroduck_Brake_R8:WireSignal_0p5mmP104
1I2C_SDAMicroduck_Brake_R8:WireSignal_0p5mmP103
1IDEAL DIODE + OV CUTPackage_SON:WSON-12-1EP_3x3mm_P0.5mm_EP1.5x2.5mmU2
1OPEN DRAIN BRAKE STATUSPackage_TO_SOT_SMD:SOT-23Q102
1REGEN HYSTERETIC COMPARATORPackage_TO_SOT_SMD:SOT-23-5U103
1RH_LOWMicroduck_Brake_R8:WirePad_2p4mm_6mmW104
1SERVO 10.8VMicroduck_Power_R8:WirePad_2p4mm_6mmW3
1SERVO CURRENT / VBUS 0x41Microduck_R22:TI_DGS0010A_1p45x0p30U3
1SERVO_BUSMicroduck_Brake_R8:WirePad_2p4mm_6mmW103
1TDK enable sinkPackage_TO_SOT_SMD:SOT-23Q3
1TDK i7C2W020A120V-P03-RMicroduck_Power_R8:TDK_i7C_P03U1

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Questions

How big is the Microduck Power Regen R22 PCB?

It measures 65 × 75 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Microduck Power Regen R22 use?

84 parts, built around the INA226AIDGSR, UCC27511DBVR(UMW), REF3312AIDBZR and TLV76050DBZR-MS. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Microduck Power Regen R22 KiCad files?

From the ldcyes/OpenDuck repository on GitHub, at the commit this page was made from: the board is hardware/r22-candidate/power_regen/Microduck_Power_Regen_R22.kicad_pcb and its schematic hardware/kicad/AMP_R3/Microduck_Audio_AMP_R3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Microduck Power Regen R22 design in my own project?

Its repository states no licence, so its author keeps all rights: ask ldcyes before reusing the design.